冷却孔布置对透平转静腔室性能影响的数值研究

张峰; 王新军; 李军

doi:10.7652/xjtuxb201603009

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冷却孔布置对透平转静腔室性能影响的数值研究

更新时间：2025-07-09

- 冷却孔布置对透平转静腔室性能影响的数值研究
- Numerical Investigation for Effect of Coolant Inlet Arrangements on Performance of Turbine Rotor-Stator Cavity
- 西安交通大学学报 2016年50卷第3期页码：55-61
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201603009
  中图分类号： TK263
- 网络首发：2016-03-10，
  
  纸质出版：2016
- 稿件说明：
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张峰, 王新军, 李军. 冷却孔布置对透平转静腔室性能影响的数值研究[J]. 西安交通大学学报, 2016,50(3):55-61.

Numerical Investigation for Effect of Coolant Inlet Arrangements on Performance of Turbine Rotor-Stator Cavity[J]. 2016, 50(3): 55-61.
张峰, 王新军, 李军. 冷却孔布置对透平转静腔室性能影响的数值研究[J]. 西安交通大学学报, 2016,50(3):55-61. DOI： 10.7652/xjtuxb201603009.

Numerical Investigation for Effect of Coolant Inlet Arrangements on Performance of Turbine Rotor-Stator Cavity[J]. 2016, 50(3): 55-61. DOI： 10.7652/xjtuxb201603009.

摘要

采用SST湍流模型数值研究了透平第二级转、静腔室的流动与封严特性

分析了冷却孔布置对腔室内的流动、冷却效率以及主流燃气入侵特性的影响。研究表明:冷却孔的位置对上游腔室内的流动影响较大

对下游腔室基本无影响; 冷却孔距离上游越近

上游腔室的旋流比越大

级间密封进口的旋流比越小

密封进、出口压比越小

相应的流过级间密封的质量流量越小

上游轮缘密封的燃气入侵量越小

上游腔室转、静壁面的冷却效率就越大; 下游轮缘密封出流的旋流比越小

相应的主流通道的流动损失越大

但冷却孔位置对下游腔室内的旋流比和壁面冷却效率的影响很小; 随着冷却空气流量的增加

3种冷却孔布置下上游腔室壁面冷却效率的差值减小。

Abstract

The flow and sealing performance of secondary rotor-stator cavity was numerically investigated with SST turbulence model. The effect of coolant inlet position on cavity flow

cooling performance and mainstream ingestion phenomenon were analyzed. The results show that the influence of coolant inlet position on the flow in upstream cavity is significant

while that in downstream cavity is slight. As the coolant inlet position moves toward upstream

the swirl ratio in the upstream cavity increases

the swirl ratio at the inlet of interstage labyrinth seal decreases

the pressure ratio and mass flow through interstage labyrinth seal decrease

the mass flow of mainstream ingestion on the upstream rim seal decreases

and meanwhile the cooling performance of the upstream cavity walls increases; whilst the swirl ratio on the downstream rim seal decreases

correspondingly the flow losses of mainstream flow increase

while the swirl ratio and walls cooling performance in the downstream cavity slightly depends on the coolant inlet position. As the mass flow rate of cooling air increases

the difference in cooling performance of the upstream cavity walls set in different coolant inlet positions decreases.

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Keywords

references

DIDENKO R A, KARELIN D V, IEVLEV D G, et al. Pre-swirl cooling air delivery system performance study [C]∥ASME 2012 Turbine Technical Conference and Exposition. New York, USA: ASME, 2012: 1921-1932.

罗翔, 冯野, 徐国强, 等. 直接供气预旋转静系流动和换热数值模拟 [J]. 航空动力学报, 2012, 27(10): 2188-2193.

LUO Xiang, FENG Ye, XU Guoqiang, et al. Numerical simulation of flow and heat transfer performances in a direct transfer pre-swirl system [J]. Journal of Aerospace Power, 2012, 27(10): 2188-2193.

DIXON J A, BRUNTON I L, SCANLON T J, et al. Turbine stator well heat transfer and cooling flow optimisation [C]∥ASME Turbo Expo 2006: Power for Land, Sea, and Air. New York, USA: ASME, 2006: 1375-1383.

DIXON J A, VALENCIA A G, COREN D, et al. Main annulus gas path interactions: turbine stator well heat transfer [C]∥ASME 2012 Turbine Technical Conference and Exposition.New York,USA: ASME, 2012: 2013-2024.

VALENCIA A G, DIXON J A, DA SOGHE R, et al. An investigation into numerical analysis alternatives for predicting re-ingestion in turbine disc rim cavities [C]∥ASME 2012 Turbine Technical Conference and Exposition. New York,USA: ASME, 2012: 2025-2035.

VALENCIA A G, DIXON J A, GUARDINI A, et al. Heat transfer in turbine hub cavities adjacent to the main gas path including FE-CFD coupled thermal analysis [C]∥ASME 2011 Turbine Technical Conference and Exposition. New York, USA: ASME, 2011: 833-843.

EASTWOOD D. Investigation of rim seal exchange and coolant re-ingestion in rotor stator cavities using gas concentration techniques [D]. Brighton, UK: University of Sussex, 2014.

LIU H, AN Y, ZOU Z. Aerothermal analysis of a turbine with rim seal cavity [C]∥ASME 2014 Turbine Technical Conference and Exposition. New York, USA: ASME, 2014: V05AT11A006.

AMIRANTE D, HILLS N J, BARNES C J. Thermo-mechanical finite element analysis/computational fluid dynamics coupling of an interstage seal cavity using torsional spring analogy [J]. ASME Journal of Turbomachinery, 2012, 134(5): 051015.

STEFANIS V. Investigation of flow and heat transfer in stator well cavities of a two-stage axial turbine [D]. Brighton, UK: University of Sussex, 2007.

ANDREINI A, DA SOGHE R, FACCHINI B. Turbine stator well CFD studies: effects of coolant supply geometry on cavity sealing performance [J]. ASME Journal of Turbomachinery, 2011, 133(2): 021008.

DEMARGNE A A J, LONGLEY J P. The aerodynamic interaction of stator shroud leakage and mainstream flows in compressors, 2000-GT-0570 [R]. New York, USA: ASME, 2000.

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杜长河,范小军,李亮,等.喷嘴长宽比和雷诺数对旋流冷却流动与传热特性的影响.2015,49(12):124-129.[doi:10.7652/xjtuxb201512020]

张峰,王新军,李军.带肋U型通道中的汽雾/空气流动与换热数值研究.2015,49(9):52-57.[doi:10.7652/xjtuxb201509 010]

李森,李亮,杜长河.球窝/球凸结构下的U型通道蒸汽冷却性能.2015,49(9):63-69.[doi:10.7652/xjtuxb201509012]

王新军,周子杰,宋钊,等.核电站凝汽器的压力瞬态变化特性.2015,49(7):6-10.[doi:10.7652/xjtuxb201507002]

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费继友,曾俊雄,高铁瑜,等.涡旋核心分布对斜置肋片蒸汽冷却通道换热特性的影响.2015,49(5):7-15.[doi:10.7652/xjtuxb201505002]

霍文浩,李军,钟刚云,等.冷却结构对中压透平级蒸汽冷却性能的影响.2015,49(5):36-42.[doi:10.7652/xjtuxb201505 006]

钟兵,洪伟,苏岩,等.点火时刻对怠速工况缸内直喷汽油机微粒排放特性的影响.2015,49(3):32-37.[doi:10.7652/xjtuxb201503006]

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